What is the definition of quality of medical care according to Avedis Donabedian?

I- The achievement of the greatest possible benefits of medical care with the lowest risks for the patient.
II- The provision of adequate amenities to the patient and their family.
III- The adherence to scientific principles of medicine, knowledge, use of technologies, and development of diagnostic and therapeutic procedures.
IV- The reflection of adequate communication and respect for the ethical principles of medicine.
a) Only I and II are correct.
b) Only III and IV are correct.
c) I, II, III, and IV are correct.
d) Only I, III, and IV are correct.